Explosion-proof dust removal system

Abstract

The invention belongs to the technical field of mine dust removal, and particularly relates to an explosion-proof dust removal system which comprises a vibrating screen, a roller screen, a bag-type dust remover and a centrifugal fan, a first air suction cover is connected to the vibrating screen, a first dust suction pipe is connected between the first air suction cover and an air inlet of the bag-type dust remover, and a second air suction cover is connected to the roller screen. A second dust suction pipe is connected between the second air suction cover and an air inlet of the bag-type dust collector, a dust collecting hopper is arranged at the bottom of the bag-type dust collector, a dust discharging vehicle is arranged below the dust collecting hopper, an anti-explosion device is connected to the outer side wall of the bag-type dust collector, and an air outlet of the bag-type dust collector is fixedly connected with an air inlet of the centrifugal fan. And an exhaust funnel is connected to an air outlet of the centrifugal fan. The explosion-proof dust removal system can act on the vibrating screen and the roller screen at the same time, dust removal operation of two devices is achieved through one system, the device installation space is saved, and the purchase and maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to an explosion-proof dust removal system, belonging to the technical field of mine dust removal. Background Art

[0002] In mine exploitation, equipment such as vibrating screens and roller screens are often used. During the use of vibrating screens and roller screens, dust is generated, so a dust removal system needs to be set up. Currently, when vibrating screens and roller screens are in use, they are both equipped with independent dust removal systems. For example, the Chinese utility model patent with the authorization announcement number CN205288974U discloses an efficient and safe vibrating screen dust removal system. The above-mentioned prior art not only occupies a large installation space, but also increases the purchase and maintenance costs, affecting the enterprise benefits. Summary of the Invention

[0003] According to the deficiencies in the above prior art, the technical problem to be solved by the present invention is to provide an explosion-proof dust removal system that can be applied to both vibrating screens and roller screens simultaneously.

[0004] The explosion-proof dust removal system of the present invention includes a vibrating screen, a roller screen, a bag filter, and a centrifugal fan. A first suction hood is connected to the vibrating screen, and a first dust suction pipe is connected between the first suction hood and the air inlet of the bag filter. A second suction hood is connected to the roller screen, and a second dust suction pipe is connected between the second suction hood and the air inlet of the bag filter. A dust collection hopper is provided at the bottom of the bag filter, and a dust unloading vehicle is placed below the dust collection hopper. An explosion-proof device is connected to the outer side wall of the bag filter. The air outlet of the bag filter is fixedly connected to the air inlet of the centrifugal fan, and an exhaust pipe is connected to the air outlet of the centrifugal fan.

[0005] Working Principle and Process:

[0006] During use, the centrifugal fan operates, and the dust generated at the vibrating screen is absorbed by the first suction hood, and then the dust is sucked into the bag filter through the first dust suction pipe. The dust generated at the roller screen is absorbed by the second suction hood, and then the dust is sucked into the bag filter through the second dust suction pipe. The bag filter adsorbs the dust generated by the vibrating screen and the roller screen, and discharges the dust to the dust collection hopper. Then the dust collection hopper discharges the dust to the dust unloading vehicle, and the dust unloading vehicle transfers the dust to a regulated place for treatment; the explosion-proof device can prevent the bag filter from exploding due to excessive pressure during operation.

[0007] Furthermore, a first control valve is provided on the first dust suction pipe, and a second control valve is provided on the second dust suction pipe. The first control valve and the second control valve can respectively control the opening and closing of the first dust suction pipe and the second dust suction pipe, so as to realize the switching among three modes: the vibrating screen operates independently, the roller screen operates independently, and the vibrating screen and the roller screen operate simultaneously.

[0008] Furthermore, a track is fixedly installed below the above-mentioned ash hopper, and the ash unloading vehicle is a rail vehicle matching the track, which can realize the directional movement of the ash unloading vehicle, so that it does not require a driver to drive, saving manpower.

[0009] Furthermore, the above-mentioned centrifugal fan is installed on the top of the bag filter, saving horizontal space and making the structure more compact.

[0010] Furthermore, a vibrating device is installed in the above-mentioned bag filter. By the action of the vibrating device, the bag filter is vibrated, so as to facilitate the bag filter to discharge the adsorbed dust into the ash hopper.

[0011] Furthermore, a muffler corresponding to the vibrating device is installed on the above-mentioned bag filter, and the muffler can reduce the noise generated by the bag filter and the vibrating device during operation.

[0012] The beneficial effects of the present invention compared with the prior art are as follows:

[0013] The explosion-proof dust removal system described in the present invention can act on the vibrating screen and the roller screen at the same time. One set of system realizes the dust removal operation of two devices, which not only saves the equipment installation space, but also reduces the purchase and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0015] Figure 2 is a schematic structural diagram of Embodiment 2 of the present invention.

[0016] In the figure: 1, vibrating screen; 2, first air suction hood; 3, first dust suction pipe; 4, bag filter; 5, exhaust pipe; 6, centrifugal fan; 7, explosion-proof device; 8, ash hopper; 9, ash unloading vehicle; 10, second dust suction pipe; 11, second air suction hood; 12, roller screen; 13, first control valve; 14, muffler; 15, vibrating device; 16, second control valve; 17, track. DETAILED DESCRIPTION OF THE INVENTION

[0017] The following further describes the embodiments of the present invention with reference to the drawings:

[0018] Embodiment 1:

[0019] As Figure 1As shown in the figure, the explosion-proof dust removal system of the present invention includes a vibrating screen 1, a roller screen 12, a bag filter 4, and a centrifugal fan 6. A first suction hood 2 is connected to the vibrating screen 1, and a first dust suction pipe 3 is connected between the first suction hood 2 and the air inlet of the bag filter 4. A second suction hood 11 is connected to the roller screen 12, and a second dust suction pipe 10 is connected between the second suction hood 11 and the air inlet of the bag filter 4. A dust collection hopper 8 is provided at the bottom of the bag filter 4, and a dust unloading vehicle 9 is placed below the dust collection hopper 8. An explosion-proof device 7 is connected to the outer side wall of the bag filter 4. The air outlet of the bag filter 4 is fixedly connected to the air inlet of the centrifugal fan 6, and an exhaust pipe 5 is connected to the air outlet of the centrifugal fan 6.

[0020] During use, the centrifugal fan 6 operates, and the dust generated at the vibrating screen 1 is absorbed by the first suction hood 2, and then the dust is sucked into the bag filter 4 through the first dust suction pipe 3. The dust generated at the roller screen 12 is absorbed by the second suction hood 11, and then the dust is sucked into the bag filter 4 through the second dust suction pipe 10. The bag filter 4 adsorbs the dust generated by the vibrating screen 1 and the roller screen 12, and discharges the dust to the dust collection hopper 8, and then the dust collection hopper 8 discharges the dust to the dust unloading vehicle 9, and the dust unloading vehicle 9 transfers the dust to a standard place for treatment; the explosion-proof device 7 can prevent the bag filter 4 from exploding due to excessive pressure during operation.

[0021] The explosion-proof dust removal system of the present invention can act on the vibrating screen 1 and the roller screen 12 at the same time. One set of system realizes the dust removal operation of two devices, which not only saves the equipment installation space, but also reduces the purchase and maintenance costs.

[0022] Embodiment 2:

[0023] As Figure 2 As shown in the figure, the explosion-proof dust removal system of the present invention includes a vibrating screen 1, a roller screen 12, a bag filter 4, and a centrifugal fan 6. A first suction hood 2 is connected to the vibrating screen 1, and a first dust suction pipe 3 is connected between the first suction hood 2 and the air inlet of the bag filter 4. A second suction hood 11 is connected to the roller screen 12, and a second dust suction pipe 10 is connected between the second suction hood 11 and the air inlet of the bag filter 4. A dust collection hopper 8 is provided at the bottom of the bag filter 4, and a dust unloading vehicle 9 is placed below the dust collection hopper 8. An explosion-proof device 7 is connected to the outer side wall of the bag filter 4. The air outlet of the bag filter 4 is fixedly connected to the air inlet of the centrifugal fan 6, and an exhaust pipe 5 is connected to the air outlet of the centrifugal fan 6.

[0024] Further, a first control valve 13 is provided on the first dust suction pipe 3, and a second control valve 16 is provided on the second dust suction pipe 10. The first control valve 13 and the second control valve 16 can respectively control the opening and closing of the first dust suction pipe 3 and the second dust suction pipe 10, so as to realize the switching among three modes: the vibrating screen 1 operating independently, the roller screen 12 operating independently, and the vibrating screen 1 and the roller screen 12 operating simultaneously;

[0025] Further, a track 17 is fixedly installed below the ash hopper 8. The ash unloading vehicle 9 is a rail vehicle matching the track 17, which can realize the directional movement of the ash unloading vehicle 9, thus eliminating the need for a driver and saving manpower;

[0026] Further, the centrifugal fan 6 is installed on the top of the bag filter 4, saving horizontal space and making the structure more compact;

[0027] Further, a rapping device 15 is installed in the bag filter 4. By the action of the rapping device 15, the bag filter 4 is vibrated, so as to facilitate the bag filter 4 to discharge the adsorbed dust into the ash hopper 8;

[0028] Further, a silencer 14 corresponding to the rapping device 15 is installed on the bag filter 4. The silencer 14 can reduce the noise generated by the bag filter 4 and the rapping device 15 during operation;

[0029] During use, the centrifugal fan 6 operates. The dust generated at the vibrating screen 1 is absorbed by the first suction hood 2, and then the dust is sucked into the bag filter 4 through the first dust suction pipe 3. The dust generated at the roller screen 12 is absorbed by the second suction hood 11, and then the dust is sucked into the bag filter 4 through the second dust suction pipe 10. The bag filter 4 adsorbs the dust generated by the vibrating screen 1 and the roller screen 12. The rapping device 15 operates to shake off the dust and discharge it into the ash hopper 8. Then the ash hopper 8 discharges the dust into the ash unloading vehicle 9. The ash unloading vehicle 9 transfers the dust to a regulated place for treatment under the guiding action of the track 17; the silencer 14 can reduce the noise generated by the bag filter 4 and the rapping device 15 during operation; the explosion-proof device 7 can prevent the bag filter 4 from exploding due to excessive pressure during operation.

[0030] The explosion-proof dust removal system described in the present invention can act on both the vibrating screen 1 and the roller screen 12 at the same time. One set of system realizes the dust removal operation of two devices, which not only saves the equipment installation space, but also reduces the purchase and maintenance costs.

[0031] It should be specifically noted that: the above embodiments are only the preferred embodiments of the present invention and should not be construed as a limitation of the present invention. Any transformation or improvement based on the concept of the present invention should be included within the protection scope of the present invention.

Claims

1. An explosion-proof dust removal system, characterized in that: The invention comprises a vibrating screen (1), a roller screen (12), a bag dust collector (4) and a centrifugal fan (6); the vibrating screen (1) is connected with a first air suction hood (2); a first dust suction pipe (3) is connected between the first air suction hood (2) and the air inlet of the bag dust collector (4); the roller screen (12) is connected with a second air suction hood (11); a second dust suction pipe (10) is connected between the second air suction hood (11) and the air inlet of the bag dust collector (4); a dust collecting hopper (8) is provided at the bottom of the bag dust collector (4); a dust unloading vehicle (9) is provided below the dust collecting hopper (8); an explosion-proof device (7) is connected to the outer wall of the bag dust collector (4); an air outlet of the bag dust collector (4) is fixedly connected to the air inlet of the centrifugal fan (6); and an exhaust pipe (5) is connected to the air outlet of the centrifugal fan (6).

2. The explosion-proof dust removal system according to claim 1, characterized in that: The first dust suction pipe (3) is provided with a first control valve (13), and the second dust suction pipe (10) is provided with a second control valve (16).

3. The explosion-proof dust removal system according to claim 1, characterized in that: A track (17) is fixedly installed below the ash collecting hopper (8), and the ash unloading vehicle (9) is a track vehicle that matches the track (17).

4. The explosion-proof dust removal system according to claim 1, characterized in that: The centrifugal fan (6) is installed on the top of the bag filter (4).

5. The explosion-proof dust removal system according to any one of claims 1 to 4, characterized in that: A rapping device (15) is installed in the bag filter (4).

6. The explosion-proof dust removal system according to claim 5, characterized in that: The bag filter (4) is equipped with a silencer (14) corresponding to the rapping device (15).

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